/* day_mon2.c -- 初始化数组 */

#include <stdio.h>

int main(void)
{
  const int days[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
  int index;

  for(index = 0; index < sizeof days / sizeof days[0]; index++)
    printf("Month %02d has %d days.\n", index+1, days[index]);
  return 0;
}